Fix backlog's issues information
Merge pull request #30 from rbigio/mgmt-29

Fix backlog's issues information
Show milestones names

- Get them from github
- Show Unassigned for issues with no milestone (using I18N)
Merge branch 'hackathon' into mgmt-33

Conflicts:
	app/views/projects/show.html.haml
Merge pull request #34 from rbigio/mgmt-33

Show milestones names